I am retriving data from a Text File, Oracle and SQL.  Is there any way that
I can perform a Union of Three data.tables from 3 Different Datasets.
Thanks

Is there someone know how to create dataset from XML format on .NET.
Thanks,
KPH

suppose i have a dataset populated using dataadapter. i bind the dataset
to a windows datagrid. i accepts new record through textboxes not
through the datagrid. how can i detect if the data entered is already
existing to the dataset before the update command of the dataset is

I have an MS Access database that contains one table with the
following information:
Date
Gallons

  I have a Dataset with 2 tables :
TBL_CUSTOMER
----------------
Cust_ID

Can anyone tell me why my datarelations are not showing up at run time when
I instantiate a Typed  dataset that I created in the Visual Studio 2003
visual designer?  I have dragged two table on to the designere and created a
relation between the two tables and generated a typed ...

I have a problem with SqlDataAdapter.Fill method called from a thread causing an SEHException to be thrown (which originates deep from unmanaged Windows code). Let me show schematic code:
class MyClass
{
 Timer timer ;

vb.net oracledataadapter connection
Error: OCI.DLL

If you have a datatable connected to a dataview.
  And
In that dataview you have a "Sort" property set to a value;
 And

Couldn't understand why following line of code is failing
<%@ Import namespace="System.Data.OracleClient" %
I am getting following error
BC30466: Namespace or type 'OracleClient' for the Imports 'System.Data.OracleClient' cannot be foun

When I started working on an ADO.NET application that accessed Oracle
9 on the backend, I downloaded and installed ODP.NET from Oracle
(http://otn.oracle.com/tech/windows/odpnet/index.html) which gave me
the Oracle.DataAccess.Client namespace.

   Why do I get a 'System.Data.EvaluateException'  when I do
DataSet.Table(strTable).Rows.Add(DataRow) ? My DataRow have 2 fieldas than I
filled with a primary key (numeric) and a text field (string). To generate
that line, I did DataRow = DataSet.Table(strTable).NewRow.

Hi all, this might be a simple question, but then again maybe not. I'm
binding a text box in a Windows form to a column that does not allow nulls.
The problem is, if I do AddNew, the user leaves the field blank, and I call
EndCurrentEdit, I get a "null not allowed" exception. What I ...

Trying to use the System.Data.OracleClient provider.  I can create the connection but when I try to open it the browser craps out and I get a page that says "Server Application Unavailable - The web application you are attempting to access on this web server is currently ...

Anyone having experience in desiging payroll and inventory applications in
Dot Net please guide me through the process of designing these kinds of Apps
in VB.NET. Such as How to gather system requirements? how to design logical
model,Physical model etc.